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[资源] 刚刚出炉的，2015年第二版的：轻合金熔体的超声处理（英文）

Ultrasonic Treatment of Light Alloy Melts
Author(s):Georgy I. Eskin, Dmitry G. Eskin
Published:August 20, 2014 by CRC Press
Content:346 Pages | 278 Illustrations
Summary
Spawned by growing interest in ultrasonic technology and new developments in ultrasonic melt processing, the Second Edition of Ultrasonic Treatment of Light Alloy Melts discusses use of ultrasonic melt treatment in direct-chill casting, shape casting, rapid solidification, zone refining, and more, exploring the effects of power ultrasound on melt degassing, filtration, and refinement in aluminum and magnesium alloys.
Table of Contents

Preface

Authors

Historical Overview of Ultrasonic Applications to Metallurgy

References

Fundamentals of Ultrasonic Melt Processing

Dynamic Means of Melt Processing

Low-Frequency Vibrations and Ultrasound: Basic Equations

Propagation of Acoustic Waves in the Melt

Acoustic Cavitation in Liquid Metals

Cavitation Strength of Liquids

Cavity Dynamics

Cavitation Region in Liquids

Acoustic Flows

Experimental Studies of Cavitation in Liquid Metals

Sonoluminescence in Melts

Accelerated Mixing and Dissolution of Components in the Melt

References

Ultrasonic Degassing

Cavitation and Degassing Nuclei

Mechanism of Ultrasonic Degassing

Ultrasonic Degassing in a Stationary Volume

Ultrasonic Degassing in the Flow

References

Ultrasonic Filtration

Effect of Ultrasound on Surface Tension and Wetting

Sonocapillary Effect

Basics of Filtration

Mechanism of Ultrasonic Melt Filtration

Filtering through Multilayer Screen Filters: Usfirals

Process

References

Ultrasonic Grain Refinement

Mechanisms of Ultrasonic Grain Refinement

Activation of Substrates

Deagglomeration and Dispersion of Particles

Refinement of Nucleating Intermetallics

Dendrite Fragmentation

Nondendritic Solidification

Ultrasonic Melt Processing in the Mold

Ultrasonic Melt Processing in the Melt Flow

References

Refinement of Primary Particles

Formation of Primary Particles during Solidification

Effect of Ultrasound on Solidification of Intermetallic Compounds

Effect of Ultrasound on the Solidification of

Hypereutectic Al–Si Alloys

References

Ultrasonic Processing during Direct-Chill Casting of Light Alloys

Direct-Chill Casting of Aluminum Alloys

Ultrasonic Processing in the Sump of a Billet

Ultrasonic Melt Processing in the Launder

Direct-Chill Casting of Magnesium Alloys

Effect of Ultrasonic Degassing and Filtration on Structure and Properties of Wrought Products

Ultrasonic Degassing

Ultrasonic Filtration

Effect of Nondendritic Structure on Structure and Properties of Wrought Products

Aluminum Wrought Alloys

Magnesium Wrought Alloys

Effect of Nondendritic Grain Structure on Homogenization

References

Ultrasonic Melt Processing during Shape Casting of Light Alloys

Technological Approaches to Shape Casting with Ultrasonic Processing

Effects of Ultrasonic Processing on Solidification in Molds

Effect of Ultrasonic Processing on Structure and Properties of Shape Castings

References

Ultrasonic Processing of Composite and Immiscible Alloys

Ultrasound-Assisted Introduction of Nonmetallic Particles and Fibers to Liquid Metals

Mechanical Properties of Composite Materials Produced Using Ultrasonic Processing

Ultrasonic Processing of Immiscible Alloys and Metallic Emulsions

References

Rapid Ultrasonic Solidification of Aluminum Alloys

Basic Sonication Schemes for Rapid Solidification

Formation of Nondendritic Structure in Rapid Solidification

Mechanical Properties of Wrought Products from Nondendritic Granules

References

Zone Refining of Aluminum with Ultrasonic Melt Processing

Basics of Zone Refining

Ultrasonic Zone Refining of Aluminum

Mechanisms of Sonication Effects on Zone Refining

Structure and Characteristics of Deformed Acoustically Refined Aluminum

References

Semisolid Deformation of Billets with Nondendritic Structure

Introduction to Semisolid Deformation 291

Effect of Nondendritic Structure of Billets on Thixotropic Behavior of Aluminum Alloys

Rheological Parameters of Semisolid Alloys

Computer Simulation of Semisolid Forging

Semisolid Deformation of Casting Alloys with Nondendritic Grain Structure

Application of Ultrasonic Processing to Rheocasting

References

Ultrasonic Melt Processing: Practical Issues

Ultrasonic Equipment

Design of Waveguide and Sonotrode

Selection of Materials for Sonotrodes

Characterization of Ultrasonic Processing

References
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